題目誤導人~5.39.217.77:88985 W% L$ I5 b8 u- K* J+ [
owner 100tvb now,tvbnow,bttvb! |- k) z9 u. B
owner's son 20
, A9 c5 P6 p# G5.39.217.77:8898each pay 40
! |( Z6 d8 h Q3 atvb now,tvbnow,bttvb40*3 = 1208 x1 @* ~. a) w* ~( E
120(3 guys) - 20(owner's son) = 100 (owner) |